Zpacks Solo-Plus Bathtub Groundsheet

This bathtub-floor groundsheet is sized specifically for the Zpacks Solo-Plus Hexamid tarp setup, so it only fits that configuration and won't work under a different tarp or tent size. The raised bathtub sides, rather than a flat sheet, keep splashback and surface water off the floor of the shelter, giving one hiker and their gear a dry base under an otherwise open tarp pitch. Because a Hexamid tarp has no built-in floor, this groundsheet effectively is the floor of the shelter rather than an optional add-on, so it's a near-essential companion piece for that setup. As with any tent-specific accessory, double-check it matches your exact tarp model before buying.